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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Ball valve design incorporates modular construction in easy-to-install, easy-to-replace cartridge housing, and a system of cams to lift upstream and downstream seals away from the ball during rotation. Tests conducted on nitrogen tetroxide prove new valve to be more efficient than previous models in preventing leakage.
Ranking and selection of insulation systems to define minimum practical design density for Modular Nuclear Vehicle applications
Thermal protection systems and components for modular nuclear vehicle
Outgassing apparatus and gas analysis data for modular nuclear vehicle
Apollo spacecraft pyrotechnics on lunar landing mission, considering standard initiator, modular cartridges, noninterchangeability of special purpose devices, postmanufacture indexing and data system
Strapdown inertial system mechanization and modularized instrument packaging with self contained failure isolation, temperature control and redundant components
Superconductive magnets with different windings and modular construction for magnetic mirror apparatus, discussing performance tests
System combines two concepts - triple modular redundancy (TMR) and spares (replacement system) redundancy. System has triplicated active unit core with associated bank of specifically arranged standby spare units. Curves plotted from characteristic equation show hybrid system is more reliable than conventional TMR systems.
Optimization of three-stage matrices, modularization, and black boxes design techniques provides for automatically interconnecting computing component inputs and outputs in general purpose analog computer. Design also produces relatively inexpensive and less complex automatic patching system.
Feasibility of reusable space-based tug with modular design
Modular transfer of cryogenic propellants for orbiting space stations using shuttle system
Cyclic arithmetic codes and their distance properties with demonstration of modular arithmetic weight invariance to code word cyclic shifts
Out-of-core nuclear thermionic converter system design feature concerning heat pipes, vapor-cooled radiators, modularity and reliability
Small satellite role in meteorological, earth observation, communications and navigation missions, discussing orbit, weight, electrical power, attitude control, data handling and modular design concepts
Hydrogen depolarized fuel cell for space station prototype carbon dioxide concentrator, describing modular design concept and operation
Modular component computational algorithm for sequential least squares estimation /filtering/ with process noise for straightforward computer code conversion
Microprogrammable modular computer utilizing only seven different types of L.S.I. elements lowers manufacturing cost and improves reliability. Chips can be standarized and used to implement variable bit length computers.
Modular construction of low cost flexible radiation shielding panels consists of water filled steels cans, zinc bromide windows, turntable unit, master-slave manipulators, and interlocking lead bricks. Easy modifications of shielding wall thicknesses are obtained by rearranging overall geometry of portable components.